Sometimes the computer turns itself off. Spontaneous computer shutdown
One of the most common problems when working with a computer is sudden shutdown. The computer turns off by itself, without any user intervention. This may happen during increased load on a computer or at all, without any visible reasons. This behavior of the computer creates a lot of inconvenience, even if shutdowns occur infrequently.
Precisely for those who are faced with similar problem and this article was written. Here you can find out the most probable reasons sudden computer shutdowns and find out what needs to be done to keep your computer working properly.
Overheating of the processor or other computer components.
If your computer turns off by itself, then the first thing you need to check is the rest of the computer components. Usually it is the overheating of the processor that causes sudden shutdowns, but in some cases the problem may be overheating of other components. To check the temperature, you can use the HWmonitor program or any other program to monitor the current computer parameters.
Problems with the power supply.
Problems with the power supply are the second most common reason that can cause your computer to shut down on its own. There are two main problems with a power supply: insufficient power or a malfunction. If your computer starts to shut down after installing new components, then most likely your power supply does not have enough power. Most often this happens after installation new video card. In this case it is necessary. If new components were not installed, then your power supply may be faulty. In this case, you just need to purchase new block power supply with the same power.
Viruses or damage operating system.
If your computer is infected with viruses, then you can forget about stable operation. The computer will slow down, glitch and turn off. If you suspect viruses, you need to install it urgently good antivirus. It's best to choose the trial version paid antivirus. Trial version will be more than enough to scan your computer and remove viruses. If your computer is seriously infected, you will most likely have to perform reinstalling Windows. Because system files may be damaged, which means that problems with shutting down your computer may continue even after removing all the viruses. In addition, some programs can damage the operating system. For example, such undesirable consequences can result from the use various programs to optimize Windows.
Power outages.
Another reason for computer shutdowns is power outages. Even minor power surges in the network can cause the computer to shut down. Even though the rest of the electronics in the house can work normally. You can solve electrical problems using.
Problems with drivers and antiviruses.
If the computer starts to turn off by itself after installing drivers or antiviruses, then this may be the problem software. Uninstall the software you installed and test your computer. Perhaps this will be enough to return your computer stable work. If your computer shuts down before you can remove these programs, try booting your computer into Safe Mode.
Problems with new components.
It is not uncommon that after installing new components, the computer begins to behave unstable. It may turn off or not start at all. In this case, you need to return the computer to the configuration that was used previously. And test new components on another computer.
Serious hardware problem
If you have ruled out all of the above problems, then most likely you have a serious hardware problem. One of your components has broken and is preventing your computer from working normally. This could be a hard drive, motherboard or RAM. If you have little experience in computer maintenance, you are unlikely to be able to check all these options yourself. Therefore, if you have suspicions that “something has burned out,” it is better to seek help from service center or an experienced computer technician.
Spontaneous shutdown computer is a signal that cannot be ignored. The reasons for this misfortune are different, but they can be divided into two main groups— something is overheating and something is broken.
First let's exclude unlikely:
Someone made a “joke” by setting an alarm clock program.
Such software, if configured appropriately, will turn off the computer at specified hours. While generating tons of outrage from the unsuspecting user. If you are on Windows 7, type the word “startup” into the “search”. Enter it, this folder should not contain third-party programs. You can also use the command “msconfig” (start-run) Field “Startup”, check the processes that are launched. (if any is unknown, you can write in the comments)
The computer turning off spontaneously is the first sign of overheating.
What in a computer can overheat? How can I check and fix this? Let's look at these questions in order.
Step 1
Therefore, it is necessary to check the temperature of these devices. If it is higher than certain values, the trigger installed in the computer will work and the device will turn off, for you it will look like a spontaneous shutdown, but in reality these are measures to protect your PC.
You can find out the temperature using the Aida program (or its older version, Everest).
Step 2. Bios Versions are different, so I won’t give screenshots, I’ll just say that you should look for inscriptions like “shut down the computer at a temperature...” (translation: turn off the computer at t°)
You should also remember when installing drivers from disks whether any additional programs? Many of them can perform the same function, i.e. turn off the PC.
Step 3. Eliminate overheating - eliminate spontaneous shutdown.
A) Unplug from the outlet, use a brush to carefully sweep away the dust from the devices, you can do this with a can of compressed air or a vacuum cleaner.
B) Change the thermal paste under the heatsink on the CPU cooler. (KPT-8 is very good)
If you have a laptop, then read more about this. + buy a cooling pad, the price is 1000 rubles.
P.S. don't forget to clean the power supply. And if it is a Chinese no-name, installed by default in the system case - even more so.
Swollen air coolers, non-working coolers- the second reason itself random shutdown computer.
It's easy to check. All fans should spin and do so without unnecessary noise or rattling.
As for the Conders- here it’s a little more complicated, good lighting is needed, we will inspect two things: the Motherboard and the PSU. We will look for barrels (see picture)
How many condors did you count? (correct answer is 5)
They should be smooth, without bulges, swelling, darkening, rust, etc. If you find something like this, then, alas, this is precisely the reason for the spontaneous shutdown of the computer.
What else?
If your device turns off only during games, or under heavy load, and you are sure that high temperature is not the reason, then most likely the problem is a lack of power supply capacity.
Interesting things on the blog:
Hello friends. What should I do if my computer turns off by itself? A PC or laptop should not randomly turn off for no reason. And if such a problem occurs, something is obviously wrong. Either the software part of the device or the hardware may be faulty. Below we will consider common reasons that can cause unauthorized shutdown of computer devices. At the end of the article I will tell you two very interesting cases on this topic.
Let's start with the reasons at the Windows level.
1. Task Scheduler
Be sure to check the Task Scheduler Library first
and delete tasks that may be associated with the computer shutting down. IN Carefully review all scheduler tasks.For example, in addition to the usual task that shuts down the PC, this can be done by a bat file launched by the scheduler, and so on.
2. Drivers
Windows is a universal operating system for a huge number of computer components. Their support is implemented through drivers, which may malfunction due to various programmers' mistakes when writing them, problems within Windows itself, or driver conflicts. More often, such problems manifest themselves in the form blue screen death (BSOD), but sometimes they can manifest themselves in the form of random shutdown of the computer without crashing into BSOD. Knowing or at least guessing which device driver is causing the problem, you can try. If the driver is installed from an EXE installer, it is preferable to obtain one. Without knowing the specific causal driver, you can try resetting the binding to the components using standard utility Windows Sysprep.
3. Viruses
Viruses can cause an arbitrary computer shutdown - both their direct participation and the consequences they cause in the form of destruction of important system files. Here you need to destroy the viruses and carry out (you can even do this). As a last resort, reinstall Windows.
4. Third party programs
If your computer turns off by itself, it may be due to third-party programs running. The likelihood of one program conflicting with another causing this to happen is very low. Usually programs just crash, and serious ones like hypervisors get BSOD. But you can also come across the following picture: erroneously configured or forgotten schedulers inside programs such as media players or various kinds of organizers, working in the background, shut down the PC (the same Download Master can do this).
Naturally, believing that in this way they follow the user's instructions.
Reveal third party programs that are causing the problem, testing will help computer device in mode. By the way, the task of turning off the computer in certain time or under certain circumstances it may dangle in the normal Windows Scheduler(this is written at the beginning of the article).
- Note: whether the reason for the random shutdown of the computer is software rather than hardware can be determined by testing its operation as part of launching from any build of a Live disk for system specialists. One of the best Live disks based on WinPE is the AdminPE and .
What hardware reasons can cause the computer to turn off on its own?
5. Heavy loads on a weak computer
If resource-intensive tasks such as modern games or programs for working with 3D are launched on a weak PC or laptop, the device may not be able to withstand the load and either freeze for a long time, or go into BSOD, or randomly reboot or turn off. And this is regardless of overheating of the video card or processor, although, naturally, both factors can occur.
6. Overheating of components
One of the most common reasons why a computer turns off by itself is overheating of the processor, video card or hard drive. The protection of these components is triggered. Again, clinical manifestations may vary - both with and without BSOD. All components are required under load. If it reaches a critical threshold, it is necessary to eliminate the cause of overheating:
Check whether the PC case is sufficiently ventilated;
Clean the computer from dust, replace the thermal paste on the processor;
Increase the cooler speed, replace it or strengthen the cooling system;
Replace HDD(often overheating HDDs are not repaired due to the impracticality of repairs, since a used hard drive in good condition is cheaper than the services of a service center to restore an overheating one).
- Note: Some laptops, e.g. individual models HP are initially susceptible to HDD overheating due to the poor design of the device itself. For such laptops you can choose.
7. Power supply
Another pretty one common reason why the computer turns off by itself - problems with the power supply. It may either be faulty or too weak to handle powerful user tasks such as running resource-intensive games. Only a specialized specialist can determine whether the power supply is faulty.
8. Power surges
Computer more consumer electronics sensitive to power surges, which, unfortunately, is often found in areas remote from cities populated areas. And power surges can lead to unauthorized shutdowns of computers, while other equipment in the house can continue to work. In such cases, care must be taken to surge protector or source uninterruptible power supply(UPS).
9. Incorrect overclocking
10. Other
Other reasons for random computer shutdown may include:
Swollen or leaking capacitors, cracks in the soldering of the motherboard;
The motherboard chipset is heating up (shutdown can occur right at the computer startup stage).
Without appropriate specialized knowledge, such issues, naturally, need to be resolved with the involvement of a service center specialist.
Promised Stories
They brought us a computer to the service center that turned off on its own (according to the client, it was always late in the evening). In search of a solution to the problem, we disassembled the entire Windows piece by piece and found nothing criminal, except for five malware, which were deleted, after which, just in case, they restored the integrity of the system files. It was already late and we got ready to go home, deciding to leave the computer on. The system engineer worked for more than a day and we safely delivered it to the client. The next day the man came again and said that the computer turned off last night. My partner decided not to suffer anymore and reinstall Windows, but I was against it. Determined to find the reason and write an article, I took the computer home. My PC didn’t turn off for three whole days! And then a wonderful thought came to my mind. I called the client and asked what he usually does at the computer in the evening and he answered: “Nothing special, watching movies”! It turned out that our victim uses only two programs: a browser and KMPlayer player, in the settings of which I found what I was looking for.
The second incident is also interesting, but I won’t describe it in full, I’ll tell you the essence. A client brought a PC, which at his home turned off several times during the day, but worked fine for us for a week. In the end, the problem turned out to be a faulty electrical power cable for the computer, which he did not bring with him. I made this assumption and asked the client to bring the cable. When testing the cable for an open circuit with a multimeter, my assumption was confirmed and all that remains is to replace it with a new one!
Greetings to all! In this article I will tell you why the computer turns off by itself. Often, diagnostic measures and PC repair involve searching for an answer to a fundamental question: why does the computer turn off on its own? This is a fairly common problem with current PCs.
This article will discuss common precedents for turning off a PC on its own and methods for solving them.
The computer turns off by itself while playing
Some people, when their computer turns off by itself, in such cases begin to blame the video card. However, it should be noted that it is in this case should be considered only after completing the check of two components of the computer. Usually, faulty video card causes, but does not turn off.
Most likely the power supply has failed.
If your PC systematically turns off during the game, then the power supply may be to blame. There are two possible reasons. The first is that a video game puts a strain on the video card, as a result of which the power supply, which is not designed for such a huge load, simply cannot withstand it.
Because of this, the system unit is overloaded. For what other reasons can a computer turn off? On this topic! If you are interested, you can find out, and also.
Problems with the processor itself.
This is one of the common reasons. Or more precisely, its peak temperature. This is also due to the increased load - during the game the demands on the power of a given computer component increase. As a result, the temperature increases. If the cooling system is on a socket central processor unsatisfactory or poor quality, then the protection is activated, i.e. The PC instantly turns off.
The symptoms listed do not necessarily relate to video games. This can also happen P when watching movies or activating “heavy” software products- all this entails high load on the CPU.
The computer reboots on its own
This case is somewhat more complicated. In addition to the above factors, there are other system components that can cause the PC to not work properly. These include the motherboard or RAM (random access memory) of the computer.
Problems arising with RAM.
Symptoms when out of order random access memory various. It includes system freezes, “braking” of software products and video games, and even the notorious PC overload. I recently told you about it, and I also said, be sure to read it.
However, it is necessary to check the OP first, since it is not difficult and the process itself will take less time than diagnosing the motherboard.
Problems associated with a faulty motherboard.
When you are convinced that everything is fine with the RAM, we recommend focusing on the motherboard. Only a specialist can handle this procedure; an ignorant person will not do anything useful. Despite this, we will try to talk about certain measures in the corresponding chapter. However, now we suggest you look into the symptoms, which will help you establish that when activated, the PC turns off due to incorrect operation of the motherboard.
- The first factor is that the operational life of the motherboard is coming to an end. In this case, its repair is impractical, since it will be easier to buy a new one. If the PC is not that old, then just buy a replacement.
- The second factor is minor cracks in the soldering of the board. There are already 2 options here - this defect will either go away on its own (after certain period time), or you will need to purchase a new board.
- Third factor - incorrect work capacitors on the motherboard. This can be cured by changing the capacitors by resoldering.
- Fourth factor - If the PC turns off while the operating system is loading, then the chipset on the board may be overheating. This can be easily checked using a multimeter.
The PC restarts for other reasons
In reality, there are many reasons, and if you do not have the knowledge and testing skills, then seek help from a knowledgeable specialist.
In addition to the above problems, self-shutdown occurs for the following reasons:
- The wiring is faulty.
- The extension cord has failed.
- Dust has accumulated in the system unit.
- Changes in electrical voltage.
- Reduced voltage in the electrical network.
It is also better to take this into account; besides, checking the listed reasons will not take much of your time. It should be noted that factors can also be of a programmatic nature. For example, if your PC turns off every two hours, it is probably infected with viruses.
How to find out why your PC turns off spontaneously
Let's consider checking the factors that caused the computer to permanently shut down. You can check what is failing by replacing the system node that is under suspicion. However, first we recommend cleaning your computer from accumulated dust.
To remove from the number possible reasons processor, you need to change the thermal paste and conduct a test using special software products, for example – S&M. But the best way to find out the processor heating temperature is through the BIOS.
RAM is checked using the MemTest86 program. If critical errors occur, you can think about a malfunction of the OP.
The power supply is checked with a multimeter. Of course, only specialists have access to it. Do not poke your nose into equipment that is operating under heavy electrical voltage, without special skills! This Golden Rule, which must always be observed.
The motherboard can be easily checked visually, look on it swollen capacitors. But it is unlikely that you will be able to find microcracks and chips. If it's all about them, then feel free to throw away the board.
All procedures are replaced by one single test - eliminating the suspected element and replacing it with one that works 100%. Although not everyone can afford this method, it works and is easy to implement. This is particularly relevant to motherboard, the symptoms of which are so diverse that you can replace half the system nodes of your computer before you get to it.
I hope such a huge article was useful to you and you found out why the computer turns off by itself during a game or just like that. I suggest you subscribe to new blog articles and receive them by email. To do this, enter your email at the end of the article. Don’t forget to ask questions in the comments, and I won’t refuse your wishes. I wish everyone peace and health in their families!
With UV. Evgeny Kryzhanovsky
A computer is a complex device where each component must work correctly, ensuring the smooth operation of the entire system. If a serious problem occurs with your computer, for protection purposes it may suddenly turn off immediately after turning on.
The problem of the computer suddenly turning off is quite common, and there are not many reasons for such a problem. Below we will look at the main ones, which most often influence the occurrence of such a breakdown.
Advice: if the BIOS makes sounds before shutting down, you need to remember them and run them through any search engine. Often, the BIOS can tell the user what problem in the computer caused it to suddenly shut down, so you can identify the cause much faster and, accordingly, solve the problem.
Reason 1: cooling system failure
First of all, when faced with a sudden shutdown of the computer immediately or almost immediately after turning it on, you should look under the body of the system unit and see if there is dust and dirt in it.
If the computer has not been cleaned for years, then dirt and dust will large volumes could accumulate on coolers, boards, microcircuits, etc. If you see that there is dust in system unit enough, it must be collected with a vacuum cleaner, and then carefully cleaned from residues with a brush.
Particular attention should be paid to the cooling system: thoroughly clean the radiator and cooler of dust, and also replace the thermal paste between the radiator and the processor. After assembling the computer, turn it on and check whether the cooler is spinning - it is quite possible that the fan has completely failed and may need to be replaced.
Reason 2: RAM problems
Incorrect connection of RAM or failure of the stick can cause a problem with the computer suddenly shutting down.
Carefully inspect the computer's RAM to see if all the sticks are connected properly. It is recommended to carefully inspect the strips themselves and the slots into which they are connected: if damage is found, this only confirms the cause of the problem.
If several sticks of RAM are connected to the computer, it is recommended to disconnect one stick at a time and check the functionality of the computer: if one stick fails, the computer will start and work normally.
Reason 3: problems with the power supply
Power unit - essential device computer, which plays an important role in its correct operation. When faced with a system shutdown, you need to think about the performance of the power supply.
You should definitely inspect the internal component of the power supply: is it clogged with dust, or has a foreign object gotten into its insides, causing short circuit, and whether the capacitors are swollen.
Reason 4: Problems with the motherboard
Quite often, the reason for a sudden computer shutdown can be caused by motherboard computer: failure of any of the connectors, problem with capacitors, etc. In this case, as a rule, the motherboard needs to be completely replaced.
Reason 5: BIOS failure
As a rule, this cause of the problem concerns you if you have previously made changes to the BIOS settings. Wrong set parameters can easily cause the computer to initially turn on, but then abruptly shut down due to the inability to continue working.
In this case, collecting BIOS settings. As a rule, a similar procedure can be performed by entering the BIOS, and then finding and selecting the option Load Optimized Defaults, Load Fail-Safe Defaults or Load Setup Defaults.
These are the main reasons that can suggest why the computer suddenly turns off. If you cannot fix the problem on your own, do not delay going to the service center.